Published the First Day of every Month.-Price 2s. 6d.

THE

LONDON, EDINBURGH, AND DUBLIN

PHILOSOPHICAL MAGAZINE,

AND

JOURNAL OF SCIENCE.

Being a Continuation of Tilloch's 'Philosophical Magazine,' Nicholson's 'Journal,' and Thomson's 'Annals of Philosophy.'

CONDUCTED BY

LORD KELVIN, LL.D. P.R.S. &c.

GEORGE FRANCIS FITZGERALD, M.A. Sc.D. F.R.S.

AND

WILLIAM FRANCIS, PH.D. F.L.S. F.R.A.S. F.C.S.

FIFTH SERIES.

No 241.-JUNE 1895.

WITH TWO PLATES.

Illustrative of Prof. A. SCHUSTER'S Paper on the Scale-Value of the late Dr. Joule's Thermometers.

LONDON:

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